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【判断题】
只有当发动机在标准的理论空燃比下运转时,三元催化转换器的转换效率才最佳。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】vi. 消灭,不见 (v__)
【简答题】1. What is George’s room number? 2. How much does the hotel charge
for a day? 3. Did George have meal in the
hotel? 4. How does George pay for the bill,
by cash or by credit card? 5. Why would Gorge l...
【简答题】Why would Gorge like to leave his luggage in the hotel until he is ready to leave?
【简答题】当旋律中的音过低时,会在乐谱的下方用( )来表示该记号下的音是低八度的音。
【简答题】v____ vi. 消灭,不见
【简答题】Why would Gorge like to leave his luggage in the hotel until he is ready to leave?
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